What do I do if I lose my Certificate of Naturalization? What do I use as proof of citizenship if I do not have my certificate?

What do I do if I lose my Certificate of Naturalization? What do I use as proof of citizenship if I do not have my certificate?

certificate of naturalizationYou may get a new Certificate of Naturalization by submitting an “Application for
Replacement Naturalization/Citizenship Document” (Form N-565) to USCIS. You
may request Form N-565 by calling the USCIS Forms Line (1-800-870-3676), or by
downloading the form at www.uscis.gov. Submit this form with the appropriate fee to the
Nebraska or Texas Service Center, depending on which Service Center has jurisdiction
over your residence.
If you have one, you may use your U.S. passport as evidence of citizenship while you wait
for a replacement certificate. It is strongly recommended that you apply for a passport as
soon as you become a citizen.